1 | #region License Information
|
---|
2 | /* HeuristicLab
|
---|
3 | * Copyright (C) Heuristic and Evolutionary Algorithms Laboratory (HEAL)
|
---|
4 | *
|
---|
5 | * This file is part of HeuristicLab.
|
---|
6 | *
|
---|
7 | * HeuristicLab is free software: you can redistribute it and/or modify
|
---|
8 | * it under the terms of the GNU General Public License as published by
|
---|
9 | * the Free Software Foundation, either version 3 of the License, or
|
---|
10 | * (at your option) any later version.
|
---|
11 | *
|
---|
12 | * HeuristicLab is distributed in the hope that it will be useful,
|
---|
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
15 | * GNU General Public License for more details.
|
---|
16 | *
|
---|
17 | * You should have received a copy of the GNU General Public License
|
---|
18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
|
---|
19 | */
|
---|
20 | #endregion
|
---|
21 |
|
---|
22 | using System;
|
---|
23 | using System.Collections;
|
---|
24 | using System.Collections.Generic;
|
---|
25 | using System.ComponentModel;
|
---|
26 | using System.Linq;
|
---|
27 | using HEAL.Attic;
|
---|
28 |
|
---|
29 | namespace HeuristicLab.Collections {
|
---|
30 | [StorableType("44FF4DAE-F308-4B3B-8475-0B0327619657")]
|
---|
31 | [Serializable]
|
---|
32 | public class ObservableSet<T> : IObservableSet<T> {
|
---|
33 | [Storable]
|
---|
34 | protected HashSet<T> set;
|
---|
35 |
|
---|
36 | #region Properties
|
---|
37 | public IEqualityComparer<T> Comparer {
|
---|
38 | get { return set.Comparer; }
|
---|
39 | }
|
---|
40 | public int Count {
|
---|
41 | get { return set.Count; }
|
---|
42 | }
|
---|
43 | bool ICollection<T>.IsReadOnly {
|
---|
44 | get { return ((ICollection<T>)set).IsReadOnly; }
|
---|
45 | }
|
---|
46 | #endregion
|
---|
47 |
|
---|
48 | #region Constructors
|
---|
49 | public ObservableSet() {
|
---|
50 | set = new HashSet<T>();
|
---|
51 | }
|
---|
52 | public ObservableSet(IEnumerable<T> collection) {
|
---|
53 | set = new HashSet<T>(collection);
|
---|
54 | }
|
---|
55 | public ObservableSet(IEqualityComparer<T> comparer) {
|
---|
56 | set = new HashSet<T>(comparer);
|
---|
57 | }
|
---|
58 | public ObservableSet(IEnumerable<T> collection, IEqualityComparer<T> comparer) {
|
---|
59 | set = new HashSet<T>(collection, comparer);
|
---|
60 | }
|
---|
61 | [StorableConstructor]
|
---|
62 | protected ObservableSet(StorableConstructorFlag _) { }
|
---|
63 | #endregion
|
---|
64 |
|
---|
65 | #region Access
|
---|
66 | public bool Contains(T item) {
|
---|
67 | return set.Contains(item);
|
---|
68 | }
|
---|
69 |
|
---|
70 | public bool IsProperSubsetOf(IEnumerable<T> other) {
|
---|
71 | return set.IsProperSubsetOf(other);
|
---|
72 | }
|
---|
73 | public bool IsProperSupersetOf(IEnumerable<T> other) {
|
---|
74 | return set.IsProperSupersetOf(other);
|
---|
75 | }
|
---|
76 |
|
---|
77 | public bool IsSubsetOf(IEnumerable<T> other) {
|
---|
78 | return set.IsSubsetOf(other);
|
---|
79 | }
|
---|
80 | public bool IsSupersetOf(IEnumerable<T> other) {
|
---|
81 | return set.IsSupersetOf(other);
|
---|
82 | }
|
---|
83 |
|
---|
84 | public bool Overlaps(IEnumerable<T> other) {
|
---|
85 | return set.Overlaps(other);
|
---|
86 | }
|
---|
87 |
|
---|
88 | public bool SetEquals(IEnumerable<T> other) {
|
---|
89 | return set.SetEquals(other);
|
---|
90 | }
|
---|
91 | #endregion
|
---|
92 |
|
---|
93 | #region Manipulation
|
---|
94 | public bool Add(T item) {
|
---|
95 | if (set.Add(item)) {
|
---|
96 | OnPropertyChanged("Count");
|
---|
97 | OnItemsAdded(new T[] { item });
|
---|
98 | return true;
|
---|
99 | }
|
---|
100 | return false;
|
---|
101 | }
|
---|
102 | void ICollection<T>.Add(T item) {
|
---|
103 | Add(item);
|
---|
104 | }
|
---|
105 |
|
---|
106 | public void ExceptWith(IEnumerable<T> other) {
|
---|
107 | if (other == null) throw new ArgumentNullException();
|
---|
108 | List<T> items = new List<T>();
|
---|
109 | foreach (T item in other) {
|
---|
110 | if (set.Remove(item))
|
---|
111 | items.Add(item);
|
---|
112 | }
|
---|
113 | if (items.Count > 0) {
|
---|
114 | OnPropertyChanged("Count");
|
---|
115 | OnItemsRemoved(items);
|
---|
116 | }
|
---|
117 | }
|
---|
118 |
|
---|
119 | public void IntersectWith(IEnumerable<T> other) {
|
---|
120 | if (other == null) throw new ArgumentNullException();
|
---|
121 | HashSet<T> items = new HashSet<T>();
|
---|
122 | foreach (T item in set) {
|
---|
123 | if (!other.Contains(item)) items.Add(item);
|
---|
124 | }
|
---|
125 | if (items.Count > 0) {
|
---|
126 | set.ExceptWith(items);
|
---|
127 | OnPropertyChanged("Count");
|
---|
128 | OnItemsRemoved(items);
|
---|
129 | }
|
---|
130 | }
|
---|
131 |
|
---|
132 | /// <summary>
|
---|
133 | /// Performs a Clear and an Add, but does not fire separate events for those operations
|
---|
134 | /// </summary>
|
---|
135 | /// <param name="other"></param>
|
---|
136 | public void Replace(IEnumerable<T> other) {
|
---|
137 | List<T> oldItems = null;
|
---|
138 | if (set.Any()) oldItems = new List<T>(set);
|
---|
139 | else oldItems = new List<T>();
|
---|
140 |
|
---|
141 | set.Clear();
|
---|
142 | set.UnionWith(other);
|
---|
143 |
|
---|
144 | List<T> items = null;
|
---|
145 | if (set.Any()) items = new List<T>(set);
|
---|
146 | else items = new List<T>();
|
---|
147 |
|
---|
148 | OnCollectionReset(items, oldItems);
|
---|
149 | if (oldItems.Count != items.Count) OnPropertyChanged("Count");
|
---|
150 | }
|
---|
151 |
|
---|
152 | public bool Remove(T item) {
|
---|
153 | if (set.Remove(item)) {
|
---|
154 | OnPropertyChanged("Count");
|
---|
155 | OnItemsRemoved(new T[] { item });
|
---|
156 | return true;
|
---|
157 | }
|
---|
158 | return false;
|
---|
159 | }
|
---|
160 | public int RemoveWhere(Predicate<T> match) {
|
---|
161 | if (match == null) throw new ArgumentNullException();
|
---|
162 | HashSet<T> items = new HashSet<T>();
|
---|
163 | foreach (T item in set) {
|
---|
164 | if (match(item)) items.Add(item);
|
---|
165 | }
|
---|
166 | if (items.Count > 0) {
|
---|
167 | set.ExceptWith(items);
|
---|
168 | OnPropertyChanged("Count");
|
---|
169 | OnItemsRemoved(items);
|
---|
170 | }
|
---|
171 | return items.Count;
|
---|
172 | }
|
---|
173 |
|
---|
174 | public void SymmetricExceptWith(IEnumerable<T> other) {
|
---|
175 | if (other == null) throw new ArgumentNullException();
|
---|
176 | List<T> addedItems = new List<T>();
|
---|
177 | List<T> removedItems = new List<T>();
|
---|
178 | foreach (T item in other) {
|
---|
179 | if (set.Contains(item)) {
|
---|
180 | set.Remove(item);
|
---|
181 | removedItems.Add(item);
|
---|
182 | } else {
|
---|
183 | set.Add(item);
|
---|
184 | addedItems.Add(item);
|
---|
185 | }
|
---|
186 | }
|
---|
187 | if ((addedItems.Count > 0) || (removedItems.Count > 0)) {
|
---|
188 | OnPropertyChanged("Count");
|
---|
189 | if (addedItems.Count > 0) OnItemsAdded(addedItems);
|
---|
190 | if (removedItems.Count > 0) OnItemsRemoved(removedItems);
|
---|
191 | }
|
---|
192 | }
|
---|
193 |
|
---|
194 | public void UnionWith(IEnumerable<T> other) {
|
---|
195 | if (other == null) throw new ArgumentNullException();
|
---|
196 | List<T> items = new List<T>();
|
---|
197 | foreach (T item in other) {
|
---|
198 | if (set.Add(item)) {
|
---|
199 | items.Add(item);
|
---|
200 | }
|
---|
201 | }
|
---|
202 | if (items.Count > 0) {
|
---|
203 | OnPropertyChanged("Count");
|
---|
204 | OnItemsAdded(items);
|
---|
205 | }
|
---|
206 | }
|
---|
207 |
|
---|
208 | public void Clear() {
|
---|
209 | if (set.Count > 0) {
|
---|
210 | T[] items = new T[set.Count];
|
---|
211 | set.CopyTo(items);
|
---|
212 | set.Clear();
|
---|
213 | OnPropertyChanged("Count");
|
---|
214 | OnCollectionReset(new T[0], items);
|
---|
215 | }
|
---|
216 | }
|
---|
217 | #endregion
|
---|
218 |
|
---|
219 | #region Conversion
|
---|
220 | public ReadOnlyObservableSet<T> AsReadOnly() {
|
---|
221 | return new ReadOnlyObservableSet<T>(this);
|
---|
222 | }
|
---|
223 | public void CopyTo(T[] array) {
|
---|
224 | set.CopyTo(array);
|
---|
225 | }
|
---|
226 | public void CopyTo(T[] array, int arrayIndex) {
|
---|
227 | set.CopyTo(array, arrayIndex);
|
---|
228 | }
|
---|
229 | public void CopyTo(T[] array, int arrayIndex, int count) {
|
---|
230 | set.CopyTo(array, arrayIndex, count);
|
---|
231 | }
|
---|
232 | #endregion
|
---|
233 |
|
---|
234 | #region Enumeration
|
---|
235 | public IEnumerator<T> GetEnumerator() {
|
---|
236 | return set.GetEnumerator();
|
---|
237 | }
|
---|
238 | IEnumerator IEnumerable.GetEnumerator() {
|
---|
239 | return set.GetEnumerator();
|
---|
240 | }
|
---|
241 | #endregion
|
---|
242 |
|
---|
243 | #region Helpers
|
---|
244 | public void TrimExcess() {
|
---|
245 | set.TrimExcess();
|
---|
246 | }
|
---|
247 | #endregion
|
---|
248 |
|
---|
249 | #region Events
|
---|
250 | [field: NonSerialized]
|
---|
251 | public event CollectionItemsChangedEventHandler<T> ItemsAdded;
|
---|
252 | protected virtual void OnItemsAdded(IEnumerable<T> items) {
|
---|
253 | CollectionItemsChangedEventHandler<T> handler = ItemsAdded;
|
---|
254 | if (handler != null) handler(this, new CollectionItemsChangedEventArgs<T>(items));
|
---|
255 | }
|
---|
256 |
|
---|
257 | [field: NonSerialized]
|
---|
258 | public event CollectionItemsChangedEventHandler<T> ItemsRemoved;
|
---|
259 | protected virtual void OnItemsRemoved(IEnumerable<T> items) {
|
---|
260 | CollectionItemsChangedEventHandler<T> handler = ItemsRemoved;
|
---|
261 | if (handler != null) handler(this, new CollectionItemsChangedEventArgs<T>(items));
|
---|
262 | }
|
---|
263 |
|
---|
264 | [field: NonSerialized]
|
---|
265 | public event CollectionItemsChangedEventHandler<T> CollectionReset;
|
---|
266 | protected virtual void OnCollectionReset(IEnumerable<T> items, IEnumerable<T> oldItems) {
|
---|
267 | CollectionItemsChangedEventHandler<T> handler = CollectionReset;
|
---|
268 | if (handler != null) handler(this, new CollectionItemsChangedEventArgs<T>(items, oldItems));
|
---|
269 | }
|
---|
270 |
|
---|
271 | [field: NonSerialized]
|
---|
272 | public event PropertyChangedEventHandler PropertyChanged;
|
---|
273 | protected virtual void OnPropertyChanged(string propertyName) {
|
---|
274 | PropertyChangedEventHandler handler = PropertyChanged;
|
---|
275 | if (handler != null) handler(this, new PropertyChangedEventArgs(propertyName));
|
---|
276 | }
|
---|
277 | #endregion
|
---|
278 | }
|
---|
279 | }
|
---|